Enter these guys: Dan and Alex.
Working from a sketch my co-worker Dan Roth drew (he draws himself in a specific style, which I wanted to re-create.) I constructed the model of Dan. Later, loosely based on that style, I built a model of myself. (Note: the huge muscles aren't just a result of an absurdly high self-esteem; the students needed a character with different bodily proportions, and my scarecrow-physique wouldn't have cut it.)
I'll post more about the specifics of their rigs and a little about how they work later.